Fixed bug #72944 (Null pointer deref in zval_delref_p).

Fix handling of qualified nullable parameter types

compile_typename() can't deal with TYPE_NULLABLE flags, drop it
beforehand.

Fix build

Missed this occurrence...

Fix return from by-ref generators

Fixed bug #72594 (Calling an earlier instance of an included anonymous class fatals)

Fixed bug #72347 (VERIFY_RETURN type casts visible in finally)
Fixed bug #72216 (Return by reference with finally is not memory safe)
Fixed bug #72215 (Wrong return value if var modified in f

Fixed bug #72347 (VERIFY_RETURN type casts visible in finally)
Fixed bug #72216 (Return by reference with finally is not memory safe)
Fixed bug #72215 (Wrong return value if var modified in finally)

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This became unnecessary after #72543 is fixed

Fixed bug #71539 (Memory error on $arr[$a] =& $arr[$b] if RHS rehashes)

Forbid use of array() in nested destructuring

Previously array() was only forbidden on the outermost level.

Don't enforce LSP if prototype method is private

Fixes bug #72496.

Don't use FUNC_ARG fetches for call_user_func()

This makes no sense -- SEND_USER can't even handle INDIRECTs.

Use DO_UCALL for method calls

Fixed build

Fixed bug #72508 (strange references after recursive function call and "switch" statement)

Fixed compilation warnings

Added ZEND_ATTRIBUTE_FORMAT to some middind functions.
"%p" replaced by ZEND_LONG_FMT to avoid compilation warnings.
Fixed most incorrect use cases of format specifiers.

Fixed bug #72441 (Segmentation fault: RFC list_keys)

Implemented RFC: Fix inconsistent behavior of $this variable
Squashed commit of the following:

commit bdd3b6895c3ce3eacfcf7d4bf4feb8dfa61801fd
Author: Dmitry Stogov <dmitry@zend.com>

Implemented RFC: Fix inconsistent behavior of $this variable
Squashed commit of the following:

commit bdd3b6895c3ce3eacfcf7d4bf4feb8dfa61801fd
Author: Dmitry Stogov <dmitry@zend.com>
Date: Thu Jun 16 00:19:42 2016 +0300

Fixed GOTO VM

commit 2f1d7c8b89ce821086d357cf65f629f040a85c03
Author: Dmitry Stogov <dmitry@zend.com>
Date: Wed Jun 15 21:01:57 2016 +0300

Removed unused variable

commit cf749c42b0b1919f70b1e7d6dcbfff76899506af
Author: Dmitry Stogov <dmitry@zend.com>
Date: Wed Jun 15 19:06:16 2016 +0300

Protection from $this reassign through mb_parse_str()

commit 59a9a6c83c66b666971e57f1173b33a422166efd
Author: Dmitry Stogov <dmitry@zend.com>
Date: Wed Jun 15 18:14:50 2016 +0300

Added type inference rule for FETCH_THIS opcode

commit 73f8d14a856f14a461430b3c7534ab2ce870cbf6
Author: Dmitry Stogov <dmitry@zend.com>
Date: Wed Jun 15 18:11:18 2016 +0300

Restored PHP-7 behavior of isset($this->foo).
It throws exception if not in object context.
Removed useless opcode handlers.

commit fa0881381e8ae97e022ae5d1ec0851c952f33c82
Author: Dmitry Stogov <dmitry@zend.com>
Date: Tue May 31 12:25:47 2016 +0300

Changed "Notice: Undefined variable: this" into "Exception: Using $this when not in object context".

commit e32cc528c0f2c97963d8ec83eff0269f1f45af18
Author: Dmitry Stogov <dmitry@zend.com>
Date: Tue May 24 02:02:43 2016 +0300

Throw exception on attempt to re-assign $this through extract() and parse_str().

commit 41f1531b52113ec8a4c208aa6b9ef50f1386bb3f
Author: Dmitry Stogov <dmitry@zend.com>
Date: Mon May 23 22:18:36 2016 +0300

Fixed inconsistent $this behavior

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C89 compatibility

Only allow single comma in tail

Cleanup

Fixed bug #72373

Better fix for bug #70228 (memleak if return in finally block)

Covariance on inheriting classes with iterable

Forbid ?void